> ## Documentation Index
> Fetch the complete documentation index at: https://www.aiaccountant.com/help/llms.txt
> Use this file to discover all available pages before exploring further.
# Review and approve a bill
> Check the extracted details field by field, allocate the payable, and approve the bill for syncing.
The **Needs Review** tab is your review queue. Every bill in it has been uploaded but not yet approved for syncing to Tally. Open the tab and click a bill to see the extracted details.
## 1. Check the bill header
| Field | What to check |
| ------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------- |
| GST Registration | The registration this purchase is recorded under. If your company is registered in more than one state, select the one for the correct branch. |
| Voucher Type | Purchase, for a normal purchase bill. Other purchase voucher types configured in Tally appear in the dropdown. |
| Supplier Invoice Number / Reference Number | Should match the invoice number printed on the vendor's bill. |
| Invoice Date | Should match the date on the bill. |
| Due Date | When payment to the vendor falls due, if the field is present. |
## 2. Check the vendor
AI Accountant matches the vendor from details on the bill, such as the vendor name and GSTIN. Confirm the correct **Vendor Name** is selected.
Once the vendor is selected, billing address, GST treatment, GSTIN, state, and place of supply come from the vendor master.
* If the match is wrong, select the right vendor from the dropdown.
* If the vendor is new, add them first, then return to the bill.
The vendor selected here becomes the party ledger on the Tally purchase voucher, so confirm it before you approve.
## 3. Check the lines
Which section you review depends on the bill. Stock purchases use **Item Details**, expenses use **Ledger Details**. Both are covered on [Item bills and expense bills](/help/accounts-payable/item-and-expense-bills).
If the bill has several line items, review each row. Quantity, rate, tax rate, and item mapping can all be corrected before approval.
## 4. Check taxes and totals
GST should match the vendor bill: CGST and SGST for an intra-state purchase, IGST for an inter-state purchase. Check the taxable amount, tax amount, and grand total.
* If reverse charge applies, set **Reverse Charge** to Applicable.
* Extra charges such as freight, packing, discount, or round-off should appear as ledger lines.
* Use **Narration** to keep a note against the entry.
Before moving on, confirm the Grand Total in AI Accountant matches the total on the uploaded bill. This is the one check worth never skipping.
## 5. Allocate the payable
Click **Allocate Invoice** if the allocation window is not already open.
| Field | What to enter |
| ----------------- | ----------------------------------------------------------------------------------- |
| Type of Reference | New Reference, for a normal vendor bill. |
| Name / Ref No | The supplier invoice number. This appears in Tally's outstanding payable statement. |
| Due Date | The date payment falls due. |
| Amount | Confirm it matches the bill total. |
If part of the bill is adjusted against an advance paid to the vendor, add another reference row and allocate that portion separately. One new reference line is enough for most bills.
Click **Confirm & Allocate**.
## 6. Approve
Click **Approve**, or **Approve & Next** to approve this bill and open the next one in the queue.
The bill leaves Needs Review and appears in **All Bills**, ready to sync. The voucher number may be blank at this stage: Tally assigns it at sync, based on your numbering settings.
Push approved bills into your Tally company.