Item list 12 rows, total with 18 percent

October 2023 a school in Kota, near Talwandi, sent a list on WhatsApp.

Not phones. Accessories for a computer lab and for teachers.

Twelve rows. Pendrive, mouse, cable, headphone, two types of charger, memory card, Bluetooth receiver, two power banks of different mAh, a webcam, a USB hub, a holder.

I looked at the list like a exam paper.

They said GST 18 percent on all. Bill needed. Delivery next day.

I started in notebook. Rate from my head. Qty. I multiply. I add. I do 18 percent on the big total.

First total 11,240. Tax 2023. Grand 13,263. Something.

I sent. School clerk said their Excel show 13,410. Please check.

I checked. I missed qty 4 on mouse. I had qty 2.

Second try. Now my tax was on a number that already had a discount I forgot I typed.

Third try I put 18 percent on each line in Excel, then I also put 18 on subtotal. Double tax. Clerk became polite in a dangerous way.

Item list 12 rows, what actually happened

I stopped Excel. I opened GST invoice draft.

Twelve lines. Each qty, rate, GST percent 18.

The page total the tax column. Grand total at bottom. DRAFT mark.

I compared with school Excel. One rate I had wrong. Webcam I said 1,350, they had quoted 1,299 from my own old message.

I fixed rate. Then both totals matched. 12,886 plus tax, I don't remember every rupee now, but that day they matched.

I printed. I delivered in a carton. Clerk signed.

If I had kept notebook, I would still be in the school office doing calculator.

February 2026 I still fear 12 row bills. I just don't fear the adding as much.

What goes wrong in twelve rows.

You skip a row. You repeat a row. Pendrive come twice, hub vanish.

You mix 18 and 12 because one item you think is 12. Then you are not sure.

If I am not sure of rate of tax, I ask CA. I don't put 12 to make school happy.

School wanted all 18. I was okay because CA had said these accessories 18 for me. If one item is different, I split.

Don't hide a 12 percent item inside 18 to make one column pretty.

Qty decimal. I don't sell 1.5 mouse. Qty is 4. If cable is 10 piece, write 10, not a bundle as 1 if they count 10.

HSN if they insist. I put what CA gave me for common goods. I don't copy HSN from a random bill of a Delhi mall.

Buyer GSTIN of school. They sent. I typed twice because one zero was O.

Preview on phone. I gave clerk preview on WhatsApp before print. He caught a spelling, Computer Lab spelled Computor.

Small thing. He cared.

I use the same GST invoice draft when a Jaipur office order 9 items. Same problem, less rows.

For 12 rows, I number them 1 to 12 in the description start if the tool lines are just lines. Helps when they say item 7 wrong.

Discount. School asked 5 percent on total.

If I discount after tax, clerk fight. If I discount before tax, my CA happy usually.

I did discount on rates a bit, then 18 on discounted taxable. I didn't put 18 on full then subtract. That was a later Diwali fight, different story.

Round off. Grand total had paise. School want round rupee.

I round only at end, show round off line if I can, or I adjust 0.20 on last item. I don't hide 50 rupee round.

Print from phone. 12 rows sometimes cut the last two on A4.

How I fill GST invoice draft now

I learned. I reduce my big shop header. Or I print landscape. Or I PDF and print from mama's computer.

If last two rows cut, they think I didn't send webcam and hub. Then they cut payment.

I check print on my own desk before tempo.

This is draft paper. School accounts may still need their format. I say, this is DRAFT from my shop, file your tax your side.

I file mine on official GST portal. BillOnDesk is not GSTN.

Don't put hologram on a 12 row school bill. Looks cartoon.

Don't write extra items they didn't take so bill look fat.

Clerk in Kota is not a fool. He unpack and tick.

I tick with him. 12 ticks. Then I leave.

If one item short, I don't say bill already made so keep it.

I make credit later or I send the item same evening. First time a USB hub was short. I went again. Petrol more than hub profit. Reputation more than petrol.

Keep a copy. 12 row bills you will not remember in March.

I email myself. Subject, Kota school 12 items Oct 2023.

When they order again in 2024, I don't copy last year rates blindly. Mouse rate changed.

I copy names, I change rates.

February 2026 a wedding photographer in Udaipur sent me another 12 row list. Not school this time. Guest return gifts, charging things.

Power bank 20 piece, cable 20, small cover 10, torch 5, and other bits. Twelve lines again. Different qty.

I didn't use notebook at all. I sat on a plastic chair near Fateh Sagar tea stall and filled GST invoice draft on phone.

His WhatsApp list had no rates. I typed my rates, sent preview, he said cable is 20 rupee less in a shop in Hiran Magri.

I said then buy cable there, I will remove that row.

He said no, keep one vendor. I reduced cable rate. Total change. Tax change. Grand change. All automatic. That is why I don't add 18 percent on a paper slip with a leaking pen.

I also check unit. He wrote 20 cable. I had typed 2. Missing a zero. Preview saved me because grand look too small for a wedding order.

If grand look too small or too big, stop. Count rows. Count qty.

A Jaipur office in January sent 12 rows where two rows were same mouse, different colour. I almost merged them. Clerk wanted separate because two departments.

Separate rows. Same HSN maybe. Different description. Black mouse. Grey mouse. Let them tick.

Don't merge to look neat.

If 18 percent is on all, I still type 18 on each line, not only on the bottom in my head. Bottom in my head is how I double taxed in 2023.

If one line is labour 0 percent or different, that line I don't force 18. This school list was all goods. Easy.

I keep a printed tick sheet. 12 boxes. Driver take it. School stamp. I take photo.

Paper is not only for GST. Paper is for the carton.

If you get a WhatsApp list of 12, don't say too long.

Open the GST draft. Fill slow. Check qty. Check 18 is 18. Check grand.

Send preview. Then print.

Notebook is still good for one charger. Twelve rows is how you lose an afternoon.

I lost one afternoon. I don't lose the next.