Your phone pings. The freight forwarder wants the balance on the container. You pay the £28,000 without blinking, because the stock is basically sold. Except it isn't. It's on a ship, and the ads meant to sell it are burning cash while you wait.
Then the bank balance does that thing. Sales up, profit up, balance down. I see it every week. As a specialist social commerce accountant, I spend my days inside the bank feeds and stock records of UK brands scaling from £1m to £20m. Same scene on loop: a founder quietly turning their bank account into a warehouse.
The uncomfortable truth. Stock is cash wearing a cardboard costume. Every pound sitting in a box is a pound not paying ads, not paying the VAT bill, not in your account. This is the stock versus cash problem, and it sinks more scaling brands than bad products ever will.
The Reality Check: How Stock Eats Your Bank Balance
Scaling DTC is a buying game before it's a selling game. You buy stock months before the platforms pay you for it. Amazon settles on its 14 day cycle. TikTok Shop pays when orders complete and the return window closes, with a reserve held back when you're new. Shopify pays fast, but only for what's sold. Nobody pays you at the till.
Now add growth. Every growth spurt needs a bigger stock order before the sales that justify it exist. You're always funding tomorrow's revenue with today's cash. That's the business model. Fund it deliberately or by accident.
Let me make it concrete. A £3m brand with a 40% gross margin sells roughly £150,000 of stock every month. Here's what different levels of discipline do:
| Stock you carry | Average stock value | Cash parked in boxes |
|---|---|---|
| 30 days | £150,000 | Lean, tense |
| 60 days | £300,000 | Twice the cash, same sales |
| 90 days | £450,000 | A warehouse with a bank account |
| 120 days | £600,000 | A liquidity problem |
Sixty days of stock is £300,000 in boxes. Ninety days, £450,000. The gap between a disciplined buyer and a hopeful buyer is £150,000 of cash that doesn't exist. You can't payroll, advertise or pay HMRC with a pallet.
Quick summary: what this means for you. Your stock level isn't a logistics decision. It's a cash decision in logistics clothing.
What HMRC Says Your Stock Is Worth
Here's where the accounting bites. For tax purposes, stock must be valued at the lower of cost and net realisable value. That rule has been with us since the 1925 case of Whimster v CIR. It sits in HMRC's Business Income Manual at BIM33110.
Plain English? If you paid £10 a unit for stock you can now only sell for £7, your accounts show £7, not £10. HMRC will not let you carry dead stock at cost. The write-down hits your profit in the year you recognise it.
Why should you care? First, the write-down is a real tax deduction, no reason to hide from it. Second, dead stock lies to you. It makes the company look richer than it is. Lenders and investors see an asset that's actually a liability with a barcode.
And a detail founders miss: deposits to suppliers count as stock too. HMRC's manual classifies payments on account as inventory (BIM33015). That £30,000 deposit to your factory is stock the moment it leaves your account. It's on your balance sheet, not in your bank, and your forecast had better know it.
The VAT Angle Nobody Warns You About
Stock goes wrong. Returns come back damaged. Trends die. Stock gets stolen. Here's what actually happens with VAT, straight from HMRC's guidance on lost, stolen, damaged or destroyed goods.
Stolen stock: if it's taken from your premises and you haven't invoiced it, no output VAT is due, you haven't supplied anything. Destroyed stock: same, no VAT. If your insurer pays out for destroyed goods, there's no VAT on the money either.
But if you sell damaged stock at a discount, VAT is due on whatever you sell it for. HMRC will want evidence. Insurance claim details, records of the loss, destruction notes. They check it at inspection.
The discipline bit: the input VAT on stock you buy for resale is reclaimable. The brands that leak cash here are the ones who never reconcile what they bought against what they actually sold. Your VAT return should be a stock reconciliation, not a guess. Our VAT registration checker and the TikTok Shop VAT checklist cover the traps at this stage.
One more lever. If your taxable turnover is £1.35m or less, you can join the VAT cash accounting scheme and pay VAT only when customers actually pay you. In a stock-heavy scale-up, that's a cashflow gift. You stay in it until turnover passes £1.6m, then it's gone. Build the habit while you can.
Where the Money Comes From: The Funding Ladder
So you need stock and you don't have the cash. Fine. Normal at your size. The mistake is grabbing the first finance that emails you. Work down the ladder, cheapest first.
1. Your suppliers. Sixty day terms turn a £90,000 stock order into £1,500 a day. Trade credit is the cheapest money you'll ever borrow, and most brands never ask because they never think of their factory as a lender. It is. The good ones charge nothing.
2. A credit line. A buffer, not a strategy. It absorbs the week three dip, it doesn't fund the whole growth plan. If you're drawing it every quarter, the forecast is telling you something. The 13 week view in Cashflow Forecasting for Hypergrowth DTC Brands shows where the dip lands.
3. Asset based lending and stock finance. You borrow against the stock itself. Secured, so cheaper than unsecured debt, but lenders haircut the value hard and they hate dead stock. Fast-moving lines only. Nobody advances 80% against last season's colourway.
4. Invoice finance. This one matters less for pure marketplace sellers than people think. Amazon and TikTok already pay you in days, you can't factor a 14 day settlement. It comes into its own with a wholesale or B2B arm where customers pay in 30 to 60 days. Factor that, not your TikTok payouts.
5. Revenue based finance. A lender takes a slice of your sales until you've repaid, plus a hefty premium. Fast, and expensive. Fine for a short ad-funded sprint, wrong for a 90 day stock cycle. Matching a 15% cost of money to a 40% margin is how margins quietly die.
6. Government-backed lending. The Growth Guarantee Scheme offers up to £2m per business group, covering term loans, overdrafts, asset finance, invoice finance and asset-based lending. It's open to UK businesses with turnover up to £45m and is administered by the British Business Bank. It's not free money, it's a guarantee that makes lenders say yes. Use it after the ladder, not instead of it.
My Contrarian Take: Stop Treating Stock Like an Asset
Here's the part that gets me in trouble with founders who love a big buy. Most scaling brands shouldn't borrow to buy more stock. They should sell the stock they've got faster.
Run the cash conversion cycle. Days in stock, plus days waiting for payment, minus days your suppliers wait for you. For a typical marketplace brand: 60 days of stock, plus 14 days of settlement lag, minus 30 days of supplier terms. Forty four days. Every £1m of sales traps over £120,000 of your cash in that loop, permanently.
The brands that fix the loop first borrow less, grow faster and sleep better. The brands that borrow first end up with a warehouse full of stock they financed at double digit rates while their margin was 40% before fees. Then the trend turns, stock goes stale, and that lower of cost rule does what it does. You can outgrow a bad product. You can't outgrow a bad cash cycle.
We have clients who have gone from zero to £1m turnover in six months. The ones still standing at £5m all learned the same lesson: the buy is the decision, the sale is just the confirmation.
Frequently Asked Questions
How much stock should a scaling brand hold?
Thirty to forty five days is the working zone. On a £3m brand with £150,000 of monthly cost of sales, that's £150,000 to £225,000 of stock. Above sixty days you're not buying stock, you're buying a cashflow problem with a due date.
Can I reclaim the VAT on stock I buy?
Yes, if it's bought for your taxable business. Keep the invoices, reclaim it on the return. Late reclaims and messy purchase ledgers are how brands lend HMRC money for free. Don't be that lender.
What happens to VAT when stock is destroyed or stolen?
No output VAT is due, there's no supply. Insurance payouts on destroyed goods carry no VAT either. But you need the evidence trail, insurance claims and destruction records. HMRC will ask for it.
Is inventory finance a good idea?
After supplier terms and a credit line, yes. Against fast-moving lines, yes. To fund a punt on an untested product, no. Lenders price risk, and dead stock is the most expensive risk in your business.
Why is my profit up but my bank balance down?
Because your profit is sitting in a box in a warehouse. The P&L books the sale when it happens. The bank books the cash when the platform pays, months later. That gap is your cash conversion cycle. We walk through the mechanics in Cashflow Forecasting for Hypergrowth DTC Brands.
Summary: Cash Is the Product
Your margin is what you make per sale. Your cash cycle is how often you make it. A 40% margin earned every 44 days turns your capital over eight times a year. Earned every 22 days, sixteen times. Same margin, double the money.
Stock is the biggest number on most scaling brands' balance sheets and the least examined one. It's also the only one that can quietly end you. Value it at what it's worth, not what you paid. Reclaim the VAT, chase the terms, and fund the buy with something cheaper than hope.
Stock is not success. Stock is cash in a cardboard box, waiting for permission to come home. The brands that win at £5m are the ones that made it come home faster than everyone else.
If you're doing £1m+ across TikTok Shop, Amazon or Shopify and want to know how much of your cash is parked in boxes, book a call. We'll run your stock days and cash cycle in the first conversation. If TikTok Shop is your world, see how we help TikTok Shop sellers. Real examples are on our case studies page.