Compliance

How tax law is reshaping cash flow for Indian MSMEs

A run of changes over the last few years didn't just add to the compliance checklist — several of them directly change how much working capital an MSME can actually count on, and when. Here's the cash flow logic behind the four that matter most.

General guidance, not tax advice — confirm applicability to your specific situation with your CA before relying on it.

1. Section 43B(h) turned "we'll pay when we can" into a tax cost for your customer

Since FY 2023-24, a buyer who pays a registered Micro or Small supplier later than 45 days (or 15, with no written agreement) loses the tax deduction on that expense for the year — it only becomes deductible in the year they actually pay. This is the single biggest lever MSMEs have gained without lifting a finger: your customer's own tax return now has a reason to pay you on time that has nothing to do with the relationship. We cover the mechanics in full in the dedicated 43B(h) guide — worth reading if you haven't, because most suppliers don't realise it applies to their invoices.

2. TReDS onboarding turned receivables into something you could actually discount

Large companies above a specified turnover threshold are required to onboard onto a Trade Receivables Discounting System (TReDS) platform, where MSME suppliers can auction their approved invoices to financiers for early payment — at a discount, but in cash, today, rather than in 60 or 90 days. The practical effect: if your buyer is a large company mandated to be on TReDS and hasn't onboarded you, that's worth raising directly — it's not a favour, it's meant to be standard practice for exactly this kind of receivable.

3. E-invoicing thresholds kept dropping — which changed who has to reconcile what

The turnover threshold above which e-invoicing (IRN generation via a government portal) is mandatory has been lowered in stages over successive years, pulling progressively smaller businesses into the system. The cash flow angle isn't the invoicing itself — it's that once e-invoicing applies to you, your invoice data flows into GSTR-1 more directly, which means a data mismatch on your side shows up in your customer's GSTR-2B faster too. If you're now under the e-invoicing threshold and weren't before, a stalled payment is more likely to be a genuine reconciliation gap than a stalling tactic — see GSTR-2B mismatches for how to close it fast.

4. Presumptive taxation thresholds changed who needs full books at all

Section 44AD's presumptive taxation scheme lets small businesses declare a percentage of turnover as income without maintaining full books of account, subject to a turnover ceiling — and that ceiling has moved over recent years, with a higher limit available when cash receipts stay within a specified proportion of turnover. The practical trade-off: staying under presumptive taxation is simpler, but it also means you may not have the bill-wise, invoice-level records that make a strong case if you ever need to write off a bad debt or pursue recovery — see the bad debt write-off rules for why detailed records matter there specifically.

The pattern across all four

None of these changes are really about compliance for its own sake — each one shifts either when money actually moves, or how much documentation you need to defend a position later. The practical response is the same for all four: know your actual outstanding position at any given moment, not just at month-end close. That's a discipline problem as much as a tax one — see how to reduce DSO for the operational side of the same question.

Next: Tax and GST rules to track · Section 43B(h) explained · Bad debts: law and tax treatment