1099 prep checklist for small businesses

Every January, a familiar scramble plays out at small businesses across the country: digging through the check register, hunting for missing W-9s, and trying to remember whether that contractor you paid in March was an LLC or a sole proprietor. It does not have to be that way. With a little structure during the year — and this checklist in January — 1099 season becomes a quick reconciliation instead of a fire drill.

This is general guidance, not tax advice. Confirm specifics with your accountant or the current IRS instructions, because thresholds and forms do change.

Step 1: Know which form you need

For most small businesses, the relevant form is the 1099-NEC (Nonemployee Compensation), which reports payments to independent contractors and freelancers. The older 1099-MISC still exists, but it now covers other categories — rents, prizes, certain legal payments, and the like. If you paid a contractor for services, you are almost certainly in 1099-NEC territory.

The general rule: you must file a 1099-NEC for each non-employee to whom you paid $600 or more during the calendar year for services in the course of your trade or business.

Step 2: Figure out who actually needs one

Not every vendor gets a 1099. Walk your vendor list against these rules:

Threshold. $600 or more in total payments during the year. Add up everything you paid them, not just the largest invoice.
Type of entity. Payments to corporations (including S-corps and C-corps) are generally exempt. Payments to sole proprietors, partnerships, and most LLCs are reportable. The W-9 tells you which is which.
Type of payment. It must be for services, in the course of your business. Buying physical goods does not trigger a 1099-NEC.
Payment method matters. This one trips people up: amounts you paid by credit card or through a third-party payment processor are reported by that processor on a 1099-K, so you should not also report them on a 1099-NEC. Only count payments you made directly — check, ACH, or cash.

That last point means you need to know not just how much you paid each vendor, but how you paid them.

Step 3: Collect W-9s — ideally before you ever pay

The W-9 is the form where a vendor gives you their legal name, business structure, and Taxpayer Identification Number (TIN). You need it to file an accurate 1099, and chasing it in January is the worst time to ask.

The fix is a policy: no W-9, no first payment. Make collecting a W-9 part of vendor onboarding, before the first invoice is paid. By year-end you will already have everything you need, and you will have learned which vendors are exempt corporations before you waste time on them.

Keep W-9s on file securely — they contain TINs and Social Security numbers — and refresh them when a vendor's name or structure changes.

Step 4: Reconcile your payment totals

Now total up what you paid each reportable vendor during the year. This is where good bookkeeping all year pays off. You are looking for:

Total direct payments (check, ACH, cash) per vendor.
Confirmation that you have excluded card and processor payments.
A flag on anyone at or above $600.

If your AP system tracks vendor payments and flags 1099-eligibility as you go, this step is a report you pull rather than a spreadsheet you build from scratch.

Step 5: Mind the deadlines

The headline date to remember: 1099-NEC forms are generally due to both the recipient and the IRS by January 31. That is a single, tight deadline — there is no later filing date for the IRS copy the way there used to be for some forms. Missing it carries per-form penalties that climb the longer you wait, so put it on the calendar in early January, not late.

If you file on paper above a certain volume, the IRS now requires electronic filing; check the current threshold, as it has tightened in recent years.

Step 6: Avoid the common mistakes

A few errors account for most 1099 headaches:

Missing or wrong TINs. A mismatch between the name and TIN can trigger IRS notices and backup-withholding obligations. This is why the W-9 matters.
Double-reporting card payments. Reporting on a 1099-NEC what a processor already reported on a 1099-K.
Forgetting reimbursed expenses. If you paid a contractor including expense reimbursements without an accountable plan, those amounts may be reportable.
Treating an employee as a contractor. Worker misclassification is its own, more serious problem; a 1099 does not make someone a contractor if the working relationship looks like employment.
Waiting until January to start. Every problem above is easier to fix in March than on January 30.

Your January checklist

[ ] Pull the list of vendors paid $600 or more directly (not via card/processor).
[ ] Confirm a current W-9 on file for each, and chase any that are missing.
[ ] Remove exempt corporations from the list.
[ ] Verify each vendor's legal name and TIN against the W-9.
[ ] Confirm payment totals exclude card and third-party-processor payments.
[ ] Prepare and send recipient copies by January 31.
[ ] File the IRS copies by January 31 (electronically if over the threshold).
[ ] Archive the filed forms and supporting W-9s with your year-end records.

Make next year easier

The single best thing you can do for next January is to track 1099 eligibility throughout the year instead of reconstructing it at the end. OutflowDesk keeps vendor records and W-9 details in one place, flags which vendors are 1099-eligible, and tallies reportable direct payments as you go — so when January arrives, the checklist above is mostly a matter of reviewing a report rather than rebuilding it from your bank statements.