Client Keeps Forwarding My Invoice to Accounts Payable? How to Escape the AP Black Hole

You know the loop. You email your contact about the unpaid invoice. They reply within the hour — "Sorry! Forwarding to accounts payable now." Silence. Three weeks later you follow up, and they forward it again. Everyone is polite, everyone is responsive, and nobody has paid you.

If your client keeps forwarding your invoice to accounts payable and nothing ever comes out the other side, here's the thing to understand: forwarding an email to AP does almost nothing. It's the corporate equivalent of throwing a letter over a wall. Your invoice isn't being processed — it's probably not even in the system.

The fix isn't chasing harder. It's getting three specific things: a name, a PO (or confirmation none is needed), and a payment run date. Once you have those, the black hole stops being a black hole. Let's get them.

Why forwarding to AP doesn't work

AP departments don't pay invoices that land in someone's inbox. They pay invoices that exist in their system — entered, coded, matched to a purchase order, and approved by whoever owns the budget.

When your contact forwards your email, one of several things usually happens:

• It goes to a shared inbox nobody owns, and dies there.
• AP opens it, sees no PO number, and parks it in an exceptions queue. Nobody tells you.
• AP can't match you to a registered vendor, so they can't even enter it. Nobody tells you this either.
• It gets entered fine, but sits waiting on an approval from a manager who's on vacation.

Notice the pattern: in every failure mode, the invoice is stuck and no one is obligated to inform you. AP's job is to pay valid, approved invoices on schedule. It is nobody's job to chase down why yours isn't one of them. That's your job, unfortunately.

Your contact isn't lying when they say they forwarded it. They just think forwarding equals submitting, and it doesn't.

Step 1: Get a human's name in AP

Stop letting your contact be the middleman. Every forward through them adds a week and loses information. You want direct contact with the person who actually processes payments.

Send your contact something like this:

"Thanks for forwarding it again — I suspect it's getting stuck somewhere in the process rather than being ignored. Could you connect me directly with someone in accounts payable? If I can talk to them for two minutes, I can fix whatever's holding it up and stop bugging you about it."

That last clause matters. You're not going around your contact — you're offering to take a chore off their plate. Most contacts will hand over a name with relief.

If they won't or can't, call the company's main line and ask for accounts payable. Seriously — phone works. AP teams answer the phone, and a two-minute call resolves things that six emails won't.

Step 2: Ask the magic question — "Is my invoice in your system?"

Once you have a real AP contact, don't ask "when will I be paid?" Ask this instead:

"Can you confirm invoice #1042 is entered in your system, and whether anything is blocking it — a missing PO number, vendor setup, or a pending approval?"

This question forces a useful answer. Either the invoice is in the system (great — now ask what stage it's at), or it isn't (also great — now you know why nothing's happened for six weeks).

The three most common blockers, and what to do about each:

No PO number. Many companies won't pay an invoice that doesn't reference a purchase order. If AP says this, go back to your contact: "AP needs a PO to process this — can you raise one?" A missing PO is your contact's problem to fix, not AP's, which is exactly why the invoice was floating in limbo. If the company doesn't use POs for services like yours, ask AP to confirm that in writing so nobody uses it as an excuse later.

You're not a registered vendor. Bigger companies can't pay anyone who isn't in their vendor master file. You may need to fill out a vendor onboarding form, supply a W-9 (or local equivalent), and provide bank details through their portal. Annoying, but do it same-day — until it's done, your invoice literally cannot be paid.

Stuck approval. The invoice is in the system but waiting on a sign-off. Ask who the approver is, then tell your contact: "AP says it's just waiting on approval from [name] — could you give them a nudge?" A specific ask with a name gets action; "please check on my invoice" doesn't.

Step 3: Get the payment run date

Here's something most freelancers don't know: AP departments don't pay invoices the moment they're approved. They pay in batches — payment runs — often weekly, sometimes twice a month, occasionally monthly.

So your final question to AP:

"Once it's approved, which payment run will it go out in? What date should I expect payment?"

Now you have a real date instead of "it's being processed." Write it down. If the date passes without money arriving, you follow up the next business day with: "This was scheduled for the June 12 run — can you check what happened?" That's a very different email than "just checking in again," and it gets very different results.

One more thing: if you're on net 30 with a client whose AP runs monthly payment cycles, your real payment timeline might be closer to 45–60 days no matter what your invoice says. Worth knowing before you set terms on the next project — our net terms calculator shows what different terms actually do to your cash flow.

Make your next invoice AP-proof

Once you've tunneled out of the black hole, set things up so you never fall back in with this client:

• Put the PO number on the invoice itself. Ask for it before you start work, not after you bill.
• Send the invoice directly to AP, with your contact CC'd — not the other way around. Ask AP for their submission email or portal.
• Include everything AP needs to match it: your legal/registered business name, the exact billing entity (companies with multiple subsidiaries reject invoices addressed to the wrong one), the contact's name and department, and your payment details.
• Ask about the payment run schedule up front. If they pay on the 15th and the 30th, time your invoicing so you don't miss a cycle by a day and wait an extra two weeks.

If you invoice companies like this regularly, it's worth writing these steps down as a repeatable process — our free accounts receivable SOP is a solid starting template.

And keep following up on a schedule, even when things seem to be moving. Invoices stuck in accounts payable go quiet precisely when nobody's watching them — a consistent cadence is what keeps yours out of the exceptions pile. If you'd rather not draft each nudge from scratch, our payment reminder email generator will write the follow-up for whatever stage you're at.

The short version: when a client keeps forwarding your invoice to accounts payable, stop treating the forward as progress. Get a name in AP, confirm the invoice is actually in their system, clear whatever's blocking it, and pin down the payment run date. The black hole only swallows invoices nobody's tracking — and automated payment reminder software can do the tracking for you.