Invoice Factoring vs Line of Credit vs Early-Payment Discount: The Cheapest Way to Get Cash From an Unpaid Client Invoice

Published: October 21, 2026 · Reading time: 13 min

TL;DR: A client owes you $10,000 on net-60 terms and you need roughly $8,500 of it now. In our worked, hypothetical example, invoice factoring (85% advance, 2.5% fee for 30 days plus 1% per extra 10 days) costs $550 if the client pays on day 60, about 39.36% annualized on the advance. A business line of credit at 12% APR with a 1% draw fee costs $252.67, about 18.08% annualized. A business credit card at 24% costs $335.34, or $0 if you clear a real 0% window. A 2% early-payment discount costs $200 and works out to about 14.90% annualized if it pulls payment forward by 50 days, but about 37.24% if it only saves 20. Factoring wins on access, not on price; a line or a discount usually wins on price. Interest on a real business loan is generally deductible on Schedule C, but a factor's fee may not be interest, so get the contract reviewed. The terms here are assumptions, not quotes. This is education, not tax advice.

You did the work, you sent the invoice, and the terms say net 60. Meanwhile the subcontractor, the software renewals and your own rent are due this month. For a freelancer, a slow-paying client is a cash-flow problem long before it is a tax problem.

There are four common ways to turn an unpaid invoice into cash sooner: sell or borrow against it (invoice factoring), borrow against your own credit (a business line of credit), put the bills on a business credit card, or ask the client to pay early in exchange for a discount. Each has a price that can be reduced to one number, the annualized cost of the cash, and each has conditions that decide whether it is available to you at all.

This guide runs one $10,000 invoice through all four, shows how the answer changes when the client pays late, explains what the IRS says about the interest and the cash-method timing, and ends with a decision guide that says which option wins under which facts. If the client never pays at all, that is a different problem; see our guide on unpaid invoices and bad-debt deductions.

The Four Options at a Glance

None of the dollar figures in this table are quotes. They are the shape of each product. Real offers vary widely, which is why the rest of this guide turns each one into an annualized number you can compare with the offer in front of you.

Worked Example: One $10,000 Invoice, Paid on Day 60

Facts. Marcus is a freelance video editor. He invoices a production company for $10,000 on net-60 terms. He needs about $8,500 now to pay a subcontractor and renew software. The client has always paid, but never early.

Hypothetical terms (replace these with your own quotes):

• Factoring. 85% advance ($8,500) on day 1. Fee of 2.5% of the invoice for the first 30 days plus 1% for each additional 10 days or part of 10 days. When the client pays, the factor keeps the fee and returns the rest of the reserve.
• Line of credit. 12% APR on a draw of $8,500, simple interest, plus a 1% draw fee ($85.00). Marcus has an existing line.
• Business credit card. 24% APR on $8,500, simple interest, with no grace period applying.
• Early-payment discount. 2/10, net 60: the client may pay $9,800 within 10 days instead of $10,000 by day 60.

All of it is simple interest on a 365-day year with no compounding. Real products compound, add other fees and change rates, so this is the shape of each option, not an exact bill.

How each number is built:

• Factoring fee. 2.5% for the first 30 days is $250.00, plus 1% for each of three further 10-day blocks (days 31 to 40, 41 to 50 and 51 to 60) at $100.00 each. $250.00 + 3 × $100.00 = $550.00. Marcus's reserve rebate is the $10,000 invoice minus the $550.00 fee minus the $8,500 advance, or $950.00. Annualized on the advance: $550 ÷ $8,500 × 365 ÷ 60 = 39.36%.
• Line of credit. Interest is $8,500 × 12% × 60 ÷ 365 = $167.67. With the $85.00 draw fee the total is $252.67, which is 18.08% annualized on the draw because the fee is a fixed cost spread over only 60 days.
• Card. $8,500 × 24% × 60 ÷ 365 = $335.34.
• Discount. The invoice is discounted by $200.00 for 50 days sooner payment. Marcus receives $9,800, so the annualized cost is $200 ÷ $9,800 × 365 ÷ 50 = 14.90%. Note that this option puts $9,800 in his hands, not $8,500, so it is not a like-for-like dollar amount with the others; the annualized rate is the fair comparison.

What the numbers say

Factoring is the expensive answer to a cash gap, in this model. Its fee schedule steps up with every 10 days, so the annualized cost is about 36% to 43% at the dates in the table below and higher on the days just past a step (a client who pays on day 31 triggers the next 1% block, which works out to about 48% a year). At day 60 it costs $297.33 more than the line of credit and $214.66 more than the 24% card, on the same $8,500.

A fee on a short loan is a high APR. The line of credit's 12% rate sounds cheap, but the $85.00 draw fee lifts the effective cost to 18.08% at 60 days and 24.17% at 30 days. The fee matters less the longer the draw stays out. If you draw $8,500 for a one-week gap, a 1% fee is the main cost.

The discount can be the cheapest paid option, but only if it buys enough days. The same 2% costs 9.31% annualized when it pulls payment forward by 80 days from net-90 terms, 14.90% for 50 days, and 37.24% for 20 days (a net-30 invoice paid on day 10). A discount is expensive when the client was going to pay soon anyway.

How big a discount is worth offering. At 50 days saved, a discount of about 1.62% matches a 12% loan, 2.42% matches the 18.08% line, 3.18% matches the 24% card and 5.12% matches the 39.36% factoring example. Anything higher costs more than that alternative.

When the Client Pays Late

The risk that matters most is the client paying later than the invoice says. Here is the same $8,500 of cash, with the invoice paid on different days. Factoring uses the fee schedule above; the line includes the same $85.00 draw fee; the card is simple interest at 24%.

Two patterns stand out. The line of credit's cost grows slowly because the draw fee is already paid. The card overtakes the line before day 45. And factoring costs more than either at every date, with a gap that widens as the client slips: at day 120 the factor's fee is $1,150.00 against $420.34 on the line. If you are factoring an invoice from a client who pays late, the fee schedule matters more than the headline advance rate. Read how the fee is computed after the initial period, whether it is charged on the invoice or only on the advance, and who bears the loss if your client never pays (a recourse agreement can leave you owing the money back).

What Each Option Really Requires

Invoice factoring

Factoring is designed for the case where you are the weak credit and your client is the strong one. The factor underwrites the client's ability to pay, so a new freelancer with thin credit but a reliable corporate client can qualify when a bank would not. That access is what you are paying for. Contract terms are the whole product, so check:

• How the fee grows. Flat, tiered by days, or a percentage of the advance. Convert it to an annualized figure for the day you realistically expect payment, not for the best case.
• Recourse. Whether you must repay the advance if the client does not pay.
• Notification. Whether your client is told, and who collects.
• Minimums and extras. Monthly minimums, due-diligence fees, ACH or wire charges. Each one raises the cost of a small invoice more than a large one.

Business line of credit

A line is the cheapest paid funding in the example, but you must already have it. Qualifying generally depends on your credit and your revenue history, and a new freelancer may not qualify. The rate can be variable and the lender can reduce or freeze the line. If you are considering borrowing against your house instead, our HELOC vs business loan comparison covers the risks.

Business credit card

A card is the most flexible bridge and the most dangerous. A genuine 0% window or a grace period can make the bridge free; a missed payoff date turns a $335.34 bridge into a revolving balance. Whether a particular charge qualifies for a promotional rate is controlled by your card agreement. For the tax side of mixing business and personal charges, see business credit card vs personal card.

Early-payment discount

A discount needs no credit and no contract with a third party, but it needs the client to agree and to actually pay early. Put it in the invoice terms ("2% off if paid within 10 days") and in writing, and decide in advance what happens if the client takes the discount but pays on day 40. It is also the one option where you receive less than the invoice instead of owing money to someone else.

What the IRS Says About the Interest and Fees

Interest on a real loan is generally deductible

IRS Publication 334 (the 2025 edition) says you can generally deduct as a business expense some or all of the interest you pay or accrue during the tax year on debts related to your business, and that interest relates to your business "if you use the proceeds of the loan for a business expense." It lists three requirements: you are legally liable for the debt, you and the lender intend that it be repaid, and you and the lender have a true debtor-creditor relationship. Interest on personal loans is not deductible on Schedule C, and if a loan is part business and part personal the interest must be divided.

The Schedule C instructions (2025) say you generally allocate interest expense by tracing how the proceeds of the loan were used. In practice that means: if Marcus draws $8,500 and spends $8,500 on the subcontractor and software, the interest follows the business use. If he also uses $2,000 for a personal expense, that part is not a Schedule C deduction. Draw only what the business needs, and keep the draw separate from personal accounts. Our Schedule C line 16 guide covers where business loan and card interest is reported and how to document it.

The section 163(j) limit is unlikely to bind

A separate rule can cap business interest deductions for larger businesses. Section 163(j)(3) says the cap does not apply to a taxpayer, other than a tax shelter, that meets the gross receipts test of section 448(c), and for a taxpayer that is not a corporation or partnership that test is applied as if it were one. Rev. Proc. 2025-32 (section 4.30) sets the average annual gross receipts figure at $32,000,000 for taxable years beginning in 2026. The Schedule C instructions say you must file Form 8990 to deduct interest expense of the business unless you are a small business taxpayer (defined in Part III) or meet another filing exception in the Instructions for Form 8990, and the small business taxpayer test is also a gross receipts test. A freelancer netting five or six figures is nowhere near it.

A factor's fee may not be "interest"

Here the guide has to be careful. The tax treatment of a factoring arrangement depends on what the contract actually is. If it is a loan secured by your invoices, the interest and finance charges follow the loan rules above. If it is a sale of the invoice at a discount, the discount is not interest in the ordinary sense, and where it belongs on your return is a preparer's judgment. Schedule C line 10 covers commissions and fees, but the instructions on that line do not say that a factor's discount belongs there, so do not assume it does. Ask a CPA or EA to read the agreement before you sign, not at filing time.

The cash method matters most near year end

Under the cash method, Publication 334 says to "include in your gross income all items of income you actually or constructively receive during your tax year." Most freelancers use it, and our cash vs accrual guide explains the choice. Three consequences follow:

• A real loan is not income. Borrowing against an invoice does not make the invoice income, and the invoice becomes income when the client pays it.
• A sale may be different. If your arrangement is a sale of the invoice, the cash you receive from the factor may be reported in the year you receive it, which can be earlier than the year the client would have paid. In November or December that can move income into this year. If you are trying to manage this year's bill, read our guide on deferring freelance income to next year first.
• A discount reduces what you receive. If a client pays $9,800 instead of $10,000, you generally report what you actually received. Confirm this with your preparer, and keep the invoice and the discount terms.

This guide does not compute an after-tax cost for any option. All four are business financing costs of broadly similar character, so the deduction shifts the dollars but does not change the ranking much, and the right marginal rate depends on a household's whole return.

Decision Guide: Which Wins Under Which Facts

Wait, if you can. If the invoice will be paid inside the time you can cover from savings, waiting costs nothing. The other options only pay if the cash earns more in your business than it costs you. If you also need the money for taxes, our guide on where to park tax set-aside savings is the place to keep it separate.

Ask for a discount if the client pays slowly and has cash. At 50 days saved, a 2% discount costs 14.90% annualized in the example, below the line, the card at 24% and factoring. It is the best paid option when it buys 50 or more days and the client is willing. It is the worst when it only saves a couple of weeks.

Use an existing line of credit when the client is reliable but slow. At 18.08% annualized for a 60-day draw in the example, it is usually the cheapest financing that does not depend on someone else's cooperation. The shorter the draw, the more the draw fee matters, so compare the all-in cost, not the headline APR.

Use a card only with a real 0% window or a payoff you will actually make. If you clear it inside the window it costs $0. If you carry the balance at 24%, it costs more than the line at every date shown after day 30 (at day 30 the two are within about $1 of each other).

Use factoring when access is the problem. If you cannot get a line, your credit is thin, and the client is strong and certain to pay, factoring may be the only practical way to get cash in days. At about 39.36% annualized for a 60-day invoice in the example, it is a price you pay for access. If the client has a history of paying late, price the fee for day 90 or 120, not day 60.

Combine them. Draw only part of what you need, ask for a smaller discount, and use savings for the rest. A smaller bridge costs less in every column.

Fix the cause. Repeated bridging is a symptom. Deposits and milestone billing reduce how much you need to finance; see our guide on client deposits, retainers and prepayments for how those are treated on the cash method. If you fund the business with your own money, our guide on owner contributions vs owner loans explains the records.

Common Mistakes to Avoid

• Comparing a flat fee to an APR. A 2.5% fee for 30 days is not 2.5%. It is about 36% a year on the $8,500 you actually receive, and about 30% if you measure it on the invoice face. Convert every offer to an annualized figure using the day you realistically expect payment.
• Pricing factoring at the best case. Fee schedules that step up every 10 days punish a slow client. Price day 90.
• Ignoring recourse. If your client does not pay, you may owe the advance back, plus fees.
• Treating the draw fee as free. A 1% fee on a 30-day draw is about 12% a year on its own.
• Drawing more than the business needs. The interest follows how the proceeds were used. Personal spending out of a business draw is not a Schedule C deduction.
• Assuming the factor's fee is interest. It might be, or it might not. Get the characterization from a preparer before filing.
• Factoring in December without a plan. On the cash method, a sale of an invoice may bring income into this year. Check before year end, and re-check your estimated tax payments.
• Offering a discount to a client who already pays fast. You give up the money and save no time.

How CentSense Helps

Cash-flow gaps are easier to manage when you know what you spent and when. CentSense helps with the expense side so your records are ready when you borrow, bridge or file:

• Scan receipts with AI as you pay them, so the business costs you financed are documented. The free tier includes 10 AI receipt scans a month
• Upgrade to the Solo plan ($5/month) for unlimited scans and mileage tracking, so business trips are logged when they happen
• Export your expenses as CSV for your preparer, or to estimate profit before each quarterly payment

Frequently Asked Questions

Is invoice factoring cheaper than a business line of credit for a freelancer?

Usually not, if you can qualify for the line. In this guide's hypothetical $10,000 invoice paid on day 60, factoring at an 85% advance with a 2.5% fee for the first 30 days plus 1% for each additional 10 days or part costs $550, or about 39.36% annualized on the $8,500 advanced. A line of credit at 12% APR with a 1% draw fee costs $252.67 on the same $8,500, about 18.08% annualized. Factoring can still be the better tool when you cannot get a line, when the factor's approval depends on your client's credit instead of yours, or when you need the funding sized to the invoice. The terms are assumptions, not quotes, so annualize the fee schedule you are actually offered and ask a CPA or EA about the tax treatment.

Is it worth offering clients a 2% early-payment discount?

It depends on how many days it saves you. A 2% discount on a $10,000 invoice costs $200 and you receive $9,800. If the client would otherwise have paid on day 60 and instead pays on day 10, that is about 14.90% annualized, cheaper than the 18.08% line of credit, the 24% card or the 39.36% factoring example in this guide. If the client's terms are only net 30, the same discount saves 20 days and works out to about 37.24% annualized, which is expensive. The calculation is simple interest with no compounding, and the client has to actually take the discount, so confirm the arrangement in writing and ask your preparer how a discount is reported.

Is interest on a loan against a client invoice tax deductible on Schedule C?

Generally yes for interest on a real loan whose proceeds you use for business expenses. IRS Publication 334 says interest relates to your business if you use the proceeds of the loan for a business expense, and it lists three requirements: you are legally liable for the debt, you and the lender intend that it be repaid, and you have a true debtor-creditor relationship. The Schedule C instructions say interest expense is generally allocated by tracing how the proceeds were used, so money used for personal spending is not a business deduction. Interest on personal loans is not deductible on Schedule C. A factor's discount may not be interest at all, and how to report it depends on the contract, so ask a CPA or EA before signing a factoring agreement.

Does a freelancer on the cash method report income when an invoice is factored or borrowed against?

This guide cannot settle that for every contract. IRS Publication 334 says that under the cash method you include in gross income all items of income you actually or constructively receive during your tax year. Money from a real loan is not income, but whether an invoice financing agreement is a loan or a sale of the invoice depends on its terms, and a sale can pull income into the year you are paid instead of the year the client pays. That matters most in November and December. Ask your CPA or EA how your specific agreement is treated before you sign, especially near year end.

Can I use a business credit card to bridge a client who pays late?

You can, and it is the cheapest bridge in this guide only if the card is at 0% for the whole gap or you clear it inside the statement grace period. Carried at an assumed 24% APR, financing $8,500 for 60 days costs about $335.34 in simple interest, which is more than the $252.67 line of credit but less than the $550 factoring fee in the example. Your card agreement controls promotional rates, grace periods and cash-advance fees, and interest on a card is deductible on Schedule C only for the business-use portion, so keep business charges separate from personal ones and ask a CPA or EA about mixed-use cards.

Does the business interest limit under section 163(j) apply to a freelancer's line of credit?

Generally not, if your business meets the small business gross receipts test. Section 163(j)(3) exempts a taxpayer that meets the gross receipts test of section 448(c), and for a taxpayer that is not a corporation or partnership the test is applied as if it were one. Rev. Proc. 2025-32 sets that average annual gross receipts figure at $32,000,000 for taxable years beginning in 2026. Most solo freelancers are far below it. Tax shelters are excluded from the exemption, and the Schedule C instructions say Form 8990 is required unless you are a small business taxpayer or meet another listed filing exception, so confirm your own status with a CPA or EA.

Which should I choose: factoring, a line of credit, a card or a discount?

No option wins on every set of facts. If you can qualify for a line of credit and the client reliably pays within 90 days, a line is usually the cheapest of the paid options in this guide's example (about 18.08% annualized at 60 days). If the client will take a discount and the payment would otherwise come 50 or more days later, a 2% discount (about 14.90% annualized at 50 days saved) can beat a line. If you have a true 0% card window, the card can cost nothing. If you cannot qualify for credit on your own and the client is creditworthy, factoring may be the only practical option, at a price the example puts near 39.36% annualized. All figures are hypothetical, so check your own quotes and ask a CPA or EA about tax treatment.

Authoritative References

• IRS Publication 334, Tax Guide for Small Business (chapters on accounting methods and deducting interest)
• IRS: Instructions for Schedule C (Form 1040), lines 10 and 16a/16b
• Rev. Proc. 2025-32, 2026 inflation adjustments (section 4.30, section 448(c) gross receipts test)
• 26 U.S.C. § 163, Interest (Cornell LII), subsection (j)(3)

Know what you spent while you wait to get paid. Start a free CentSense account to scan receipts with AI, so the expenses you finance are documented before you file. The free tier includes 10 AI receipt scans a month, no credit card required, and the Solo plan is $5/month for unlimited scans, mileage tracking and CSV export.

This guide is general education for U.S. freelancers who file Schedule C. It is not personalized tax, legal or financial advice. The $10,000 invoice, the factoring fee schedule, the 12% line of credit, the 1% draw fee, the 24% card rate and the 2% discount are hypothetical; real products vary and are priced by their own terms. The examples use simple interest on a 365-day year and ignore compounding, other fees and taxes. Whether an invoice financing arrangement is a loan or a sale, and how its costs are reported, depends on the contract. Confirm your options, and the tax treatment of any agreement, with a CPA or EA before you sign.