Compliance KPIs for Corrugated Box Manufacturers

A corrugated-carton manufacturing unit is GST-classified at HSN 4819, output rate 18%. Its core inputs (kraft paper at HSN 4804, starch, glue, water, electricity) are taxed at the same 18%, while job-work labour is at 12%. That keeps the unit perpetually in inverted duty structure for some month-classes of orders, opening up refund claims under Section 54(3) of the CGST Act.

The single largest income-tax shift hitting MSME-classified manufacturers is Section 43B(h), inserted by Finance Act 2023. Payments to micro and small enterprises must be settled within 45 days (or 15 if there is no written agreement) or the expense is disallowed in the year of accrual itself. This hurts more than 40A(3) ever did because the disallowance is permanent.

1. Income Tax KPIs

The Income Tax Act 1961 — and the new Income Tax Act 2025 effective 1 April 2026 — keep the same pillars: pay advance tax on time, file an accurate return, and stay clean on cash. The KPIs below are the ones an audit officer pulls up first if your file lands on a scrutiny desk.

KPI / Compliance Item	Threshold & Action	Due Date	Source
Tax audit u/s 44AB	Turnover above Rs 1 crore (Rs 10 crore if cash below 5%). Virtually every box manufacturer falls inside.	30 Sep 2027	Sec 44AB
Sec 43B(h) — MSME 45-day rule	Payments to micro and small enterprises (per Udyam registration under MSMED Act) must be made within 45 days, or 15 if there is no written agreement. Otherwise the expense is disallowed in the year of accrual.	Continuous	Sec 43B(h)
Advance tax	15 / 45 / 75 / 100 percent. Factor in Q4 inventory write-down and scrap impact when running the projection.	Quarterly	Sec 208–211
Sec 32 — depreciation	Plant and machinery (corrugating board, flexo printer) at 15% WDV; 20% additional under 32(1)(iia) for new manufacturing P&M put to use; computers at 40%.	Annual	Sec 32
Cash payment cap (40A(3))	Cash payment above Rs 10,000 disallowed. Applies to scrap purchases and daily-wage labour.	Continuous	Sec 40A(3)
ITR filing	ITR-5 / ITR-6.	31 Oct 2027	Sec 139(1)

2. TDS KPIs

TDS payments are due by the 7th of the next month (March is 30 April), and quarterly Form 26Q or 27EQ returns drive Form 16 / 16A on TRACES. Late filing of the return alone costs Rs 200 per day under Sec 234E.

KPI / Compliance Item	Threshold & Action	Due Date	Source
194Q — Purchase of kraft paper / reels	0.1% on purchases above Rs 50 lakh from one supplier in the FY (turnover above Rs 10 crore). Kraft mills are usually large suppliers.	7th of next month	Sec 194Q
194C — Job-work, printing, lamination	1% / 2% on payments above Rs 30,000 single bill or Rs 1 lakh aggregate.	7th of next month	Sec 194C
194I — Factory shed rent	10% on rent above Rs 2.4 lakh in the FY.	7th of next month	Sec 194I
194J — Quality, R&D, consultant	10% on professional fees above Rs 30,000.	7th of next month	Sec 194J
206C(1H) — Sale of finished cartons	0.1% on sale above Rs 50 lakh from one buyer (seller turnover above Rs 10 crore). Overridden if the buyer deducts under 194Q.	7th of next month	Sec 206C(1H)
Quarterly returns and Form 16 / 16A	Quarterly Form 26Q and 27EQ plus annual TDS certificates from TRACES.	31 Jul, 31 Oct, 31 Jan, 31 May	Rule 31 / 31A / 31AA

3. GST KPIs

GST is the most data-rich compliance regime — every invoice you raise and every invoice you receive sits on the network. Use GSTR-2B, not 2A, as your reconciliation base from FY 2022-23 onwards.

KPI / Compliance Item	Threshold & Action	Due Date	Source
Output HSN 4819 — Corrugated cartons	18%.	Continuous	Notification 1/2017-CT(R) Sch III
Input HSN 4804 — Kraft paper	18%, same as output. Potential ITC accumulation in some month-classes.	Continuous	Notification 1/2017-CT(R) Sch III
Job-work outbound (sending sheets for printing)	12%. Goods must move under Form ITC-04 quarterly intimation.	Continuous	Notification 11/2017-CT(R) and Rule 45
Inverted duty refund — Sec 54(3)(ii)	Refund of accumulated ITC where input rate exceeds output rate, capped per Rule 89(5). File RFD-01 within 2 years from the end of the FY in which credit accumulated.	Within 2 years	Sec 54(3) and Rule 89(5)
E-invoicing	Mandatory if aggregate turnover above Rs 5 crore in any FY since 2017-18.	Every B2B invoice	Rule 48(4)
E-way bill	On every dispatch above Rs 50,000, including job-work transit (cross-reference Form ITC-04).	Pre-movement	Rule 138
GSTR-1 / 3B	Monthly.	11th / 20th	Sec 37 / 39
GSTR-9 / 9C	Annual return plus reconciliation if turnover above Rs 5 crore.	31 Dec 2027	Sec 44
Form ITC-04	Quarterly if turnover above Rs 5 crore, half-yearly otherwise. For job-work goods sent and received back.	25th of month after period	Rule 45 / Notification 35/2021

4. Profession tax (Maharashtra)

Profession Tax is a state levy run by the Maharashtra Goods & Services Tax Department. There are two registrations and most businesses need both — one for the owner, one for the staff.

Registration	Who needs it / what you pay	Due date	Source
PTEC (Enrolment)	For the proprietor, partner, director, LLP or company. Flat Rs 2,500 per year for most non-salaried professions and businesses.	30 June	MahaGST PT Act 1975
PTRC (Registration)	For employers paying salary above Rs 7,500 p.m. (male) or Rs 25,000 p.m. (female). Slabs: Rs 175 p.m. for Rs 7,501–10,000 (male); Rs 200 p.m. plus Rs 300 in February if salary exceeds Rs 10,000. Annual ceiling Rs 2,500 per employee.	Last day of the next month	MahaGST PT Rules

5. Bookkeeping and the filing system

Section 44AA of the Income Tax Act and Section 35 (read with Rule 56) of the CGST Act set the bookkeeping baseline. For most non-professional businesses, books are required if income is above Rs 2.5 lakh or turnover above Rs 25 lakh in any of the three preceding years.

Minimum books to keep

• Cash book, bank book, journal and ledger — daily, on accrual basis (Sec 145 read with ICDS).
• Sales register and purchase register — invoice-wise, with HSN/SAC and GST.
• Stock register — opening, receipts, issues, closing. Mandatory under CGST Rule 56(2).
• Bills, vouchers, e-way bills and delivery challans behind every entry.
• Fixed asset register, block-wise, with the date the asset was put to use.
• TDS / TCS certificates downloaded from TRACES.
• Daily production register (RG-1 equivalent), tracking input GSM and reel number into output box dimensions and quantity.
• Stock register: kraft paper reels, finished cartons, glue, ink, scrap. Mandatory under CGST Rule 56(2).
• Job-work challan plus ITC-04 reconciliation: goods sent for printing or die-cutting and received back within 1 year (3 years for capital goods).
• MSME Form-1 (Udyam) reconciliation: supplier-wise outstanding above 45 days for the 43B(h) workings.
• Pollution control records: MPCB Consent to Operate, hazardous waste manifest if printing inks are used.

How long to keep them

• Income Tax: 6 years from the end of the relevant Assessment Year (Sec 149). For reopened or search cases, up to 10 years.
• GST: 72 months from the due date of the annual return for the year (CGST Sec 36).
• Companies and LLPs: 8 financial years (Sec 128 Companies Act 2013 / corresponding LLP rules).

6. Sector-specific compliance traps

The four mistakes our team sees most often when we take over books from another firm:

7. Annual compliance calendar (FY 2026-27)

Month	Compliance milestones
April	TDS payment for March (30 Apr); GSTR-1 / 3B for March; PT employee deduction.
May	Q4 TDS return Form 26Q (31 May); Form 16A; SFT-005 / 61A (31 May).
June	Form 16 to employees (15 Jun); Q1 advance tax (15 Jun); PTEC payment (30 Jun).
July	Q1 TDS return (31 Jul); ITR for non-audit cases (31 Jul); QRMP option last month.
August	Routine GSTR-1 / 3B; e-invoice review.
September	Tax audit report u/s 44AB (30 Sep); Form 10B / 10BB (30 Sep) for trusts; Q2 advance tax (15 Sep).
October	Q2 TDS return (31 Oct); ITR for audit cases (31 Oct); GSTR-9 prep starts.
November	ITR for transfer-pricing cases (30 Nov).
December	Q3 advance tax (15 Dec); GSTR-9 / 9C filing (31 Dec).
January	Q3 TDS return (31 Jan); books reconciliation for FY closing.
February	Stock-take preparation; PT special slab (Rs 300 in Feb).
March	Q4 advance tax (15 Mar); Annexure V for GTAs (31 Mar); books closure; year-end TDS.