This is the situation that drives most emergency borrowing, and pressure makes people take the first offer that comes. Here's the order of operations that costs least.
First: work out which problem this is
Before anything else, answer honestly: is Friday short because money you're owed hasn't arrived yet, or because the business isn't currently generating enough to cover its costs?
If it's the first, you have a timing problem and several reasonable options below. If it's the second, borrowing will make it worse, and the useful moves are different — cost reduction, a conversation with your accountant, possibly restructuring. Expensive money doesn't fix a business that isn't covering its costs; it adds a daily obligation to one that already can't.
Most owners know which it is. The temptation is to treat the second like the first because the first has a faster answer.
The order that costs least
Roughly cheapest to most expensive. Work down, not up.
1. Collect what you're owed
Obvious and routinely skipped under stress. Pull your receivables and call — don't email — every customer with an overdue invoice. A direct call asking for payment this week works more often than owners expect. Offer a small early-payment discount if that's what closes it; 2% to get paid Thursday is far cheaper than any financing on this page.
2. Ask your suppliers for terms
If you owe a supplier $20,000 due this week, a call asking to push it two weeks costs nothing and frequently works, especially with a long relationship. Suppliers would rather wait than lose you. This is effectively free financing and it's the single most underused option.
3. Use an existing line of credit
If you have one, this is exactly what it's for. If you don't — note it for later. A line opened during a good quarter is the cheapest insurance against this exact situation, and you can't open one in the middle of it.
4. 0% business credit cards
If your personal credit is around 680+, several major issuers offer 0% intro periods of nine to fifteen months. Payroll can't usually go directly on a card, but other expenses can — freeing cash for payroll. Genuinely interest-free if repaid within the window. The catch: approval takes days to weeks, so this is a "set up before you need it" option.
5. Invoice factoring
If you're B2B with outstanding invoices, this converts money you've already earned into cash in one to seven days. Usually cheaper than an advance, and it qualifies at lower credit because your customer's creditworthiness carries the file. If you have real receivables, check this before anything more expensive. How factoring works.
6. Short-term or bridge loan
Fixed sum, fixed payment, defined end date. Cheaper than an advance and far easier to reason about. Requires 550+ credit and reasonably consistent deposits. More on bridge loans.
7. Working capital advance
Fastest and most expensive. Funds in one to three days, approves down to around 500 credit. Defensible when a specific, dated event repays it. Dangerous when it's covering a gap that doesn't close. The test is here.
Things to avoid under pressure
Don't take the first offer because it came first. Speed-to-lead is how this industry works — the first caller is the one with the best dialer, not the best terms. Even two hours spent getting a second quote can change the total cost by thousands.
Don't stack a second advance on an existing one. If you already have an advance and the answer to this week is another one, the underlying problem is structural. Read this first.
Don't sign without the total payback figure in dollars. Not the factor rate, not the payment — the total. If a rep won't give you that number plainly, that's information about the rep.
Don't skip the worst-week test. Check the daily or weekly draw against your worst recent week, not your average one.
What to do the week after
Whatever happens Friday, the version of this problem that matters is the next one. Two things prevent it.
Open a line of credit while things are stable. Unused, it costs almost nothing. It's the difference between a phone call and a crisis next time. The requirements — around 12 months in business, $25k/month, 600+ credit — are meaningfully easier to meet when you're not in the middle of a shortfall.
Look at the payment terms causing this. If you're regularly bridging gaps because customers pay on 60 days while payroll is biweekly, that's a structural mismatch that financing treats symptomatically forever. Shorter terms, deposits upfront, or a standing factoring arrangement address the cause.
If you're reading this at 2am on a Wednesday: start with the calls. Receivables, then suppliers. Both are free, both work more often than people expect, and both can be done before anyone opens for business Thursday.