A manufacturing unit is two businesses stapled together: buying and making, then selling. Most billing software understands the second half and leaves the first to a notebook.
The documents that actually run a plant
- Purchase order to the supplier.
- Purchase invoice when material arrives.
- Delivery challan for job work going out, and a receipt when it returns.
- Tax invoice for finished goods.
- Credit and debit notes for rejections both ways.
Material sitting with a job worker is the item most often lost. If it is not a document, it is not visible.
Beautiful GST invoices with your signature and stamp, quotations to credit notes, inventory, UPI collection and 30+ reports.
Start free See the demoWhat has to reconcile
- Stock of raw material against purchases and consumption.
- Finished goods against production and sales.
- GST input against purchase invoices, output against sales.
- HSN-wise summaries for returns.
How MizUp Finance handles it
MizUp Finance covers every sales and purchase document with GST worked out, inventory that moves with each document, and over thirty reports including GST and HSN summaries. Job work goes out on a delivery challan and comes back as a receipt, so material with a third party stays on the books.
Vendor and customer ledgers show both sides of the balance, and UPI collection sits on the invoice. Payment reminders can go out over WhatsApp through MizUp CLM against the same party, and the plant workforce runs on MizUp BMS.
What it costs
Free plan available; paid plans from Rs 208 per month. See Finance pricing.
Where to start
Start with purchases and job work challans, not sales invoices. Sales you are probably already recording. Explore MizUp Finance.
Where manufacturing units usually go wrong
- Job work tracked mentally. Material sitting with a job worker is the item most often lost. If it is not a document, it is not visible.
- Purchase orders skipped. Ordering by phone is faster and leaves no record when the supplier delivers something different.
- Raw material and finished goods as one stock. Consumption and output then cannot be compared, and yield is guesswork.
- Input GST reconciled annually. Monthly it takes an hour. Annually it takes a week and finds problems too late to fix.
- Rejections adjusted informally. Both directions need credit or debit notes, or the returns will not match.
- HSN added at return time. Adding it at the item level once is far less work than adding it to a year of invoices in a hurry.
A realistic first thirty days
| Week | Focus | What good looks like |
|---|---|---|
| Week 1 | Items and HSN | Raw material and finished goods as separate items with units and HSN. |
| Week 2 | Purchases | Purchase orders and purchase invoices recorded. Vendor balances become visible. |
| Week 3 | Job work | Delivery challans out, receipts back. Material with third parties stays on the books. |
| Week 4 | Reconcile | Input GST against the portal for one month. Fix what the exercise reveals. |
Start with purchases, not sales. Most units already record sales somewhere; almost none record what left for job work.
The numbers worth watching
| Metric | Why it matters | How to read it |
|---|---|---|
| Material with job workers | The most commonly lost asset in a small plant | Open challans with no matching receipt. |
| Input GST claimed versus available | Direct money | Reconciled monthly against the portal. |
| Yield by batch | Whether consumption matches output | Needs raw material and finished goods as separate stock. |
| Vendor ageing | What the plant owes and when | Reviewed with cash planning, not after it. |
| Rejection rate by supplier | A purchasing decision, made with data | Debit notes as a share of purchase value. |
The half most software ignores
Billing software is generally designed for businesses that buy finished goods and sell them. A manufacturing unit buys inputs, transforms them, sometimes sends them out and back again, and only then sells. The first half of that is where the money is tied up and where most software offers nothing.
That is why the sequence above begins with purchases and job work rather than invoices. A unit that records those two properly usually discovers material it had written off mentally, and an input credit it had not claimed.
None of this requires a full ERP. It requires the documents to exist and to move stock when they are raised.
Once they do, the monthly GST reconciliation stops being an event and becomes an hour.
How this fits with the rest of your stack
A manufacturing unit has a plant and an office, and the two usually run on software that shares nothing.
On MizUp, Finance covers purchase orders, purchase invoices, job work challans, finished-goods invoices, credit and debit notes, stock and GST reports, while BMS runs the workforce — rosters, gate attendance, overtime and payroll with statutory deductions.
Cost centres mean the same thing in both, which is what makes a per-line cost meaningful rather than an allocation someone did in a spreadsheet.
Job work is where small units lose money quietly
Ask a small manufacturer how much material is currently with job workers and most will give a figure that turns out to be optimistic. Not because anyone is dishonest, but because the record of what went out lives in a challan book, the record of what came back lives in a gate register, and nobody reconciles the two until something is obviously missing.
The fix is unglamorous: raise a delivery challan when material leaves, record a receipt when it returns, and run a report of open challans once a week. Anything older than the agreed turnaround gets a phone call.
The first run of that report is usually uncomfortable. Units routinely find challans open for months, some for material that did come back but was never recorded, and some for material that genuinely did not.
After the first clean-up, the weekly report takes two minutes and the problem does not recur. That is a large return for a small habit.
Related reading
- Delivery challan format under GST
- Credit notes under GST
- HRMS for manufacturing plants
- Billing software for wholesale and distribution
Frequently asked questions
What documents does a manufacturing unit need?
Purchase orders, purchase invoices, delivery challans including job work, tax invoices, credit and debit notes. Missing any one of them pushes work into a spreadsheet.
How is job work handled?
As a delivery challan out and a receipt back, so material at a job worker is visible rather than written off in your head.
Can it track raw material and finished goods separately?
Yes, as separate items with their own stock, so consumption and output are both visible.
Does it produce GST-ready reports?
Yes - GST summaries and HSN-wise reports come out of the same data you billed from.
Is it suitable for a small unit?
Yes. The free plan covers basic invoicing, and paid plans start at Rs 208 per month.
