# Chapter 4.3.14 - Invoice Date

Source: https://developer.avalara.com/products/communications/integration-guides/dev-guide_rest_v2/customizing-transactions/sample-transactions/invoice-date/

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The Invoice Date field (`date`) is normally populated with the bill date, invoice date, or call date (as applicable) and is set at the invoice level. The field may appear in any of the Standard Date and Time Format Strings for .NET Framework shown in the table below.

Date Format

Sample

yyyymmdd

20180601

mm/dd/yyyy

06/01/2018

m/d/yyyy

6/1/2018

mm-dd-yyyy

06-01-2018

m-d-yyyy

6-1-2018

yyyy-mm-dd

2018-06-01

yyyy-m-d

2018-6-1

yyyy-mm-ddThh:MM:ss

2018-06-01T13:45:30

yyyy-m-dThh:MM:ss

2018-6-1T13:45:30

REST v2 compares this date to the effective date of each tax that applies to the transaction. Historical rates and effective dates are maintained and updated within the AFC tax engine and correct tax information is returned based upon the transaction date.

### Invoice Level Invoice Date Example

In this example, the Invoice Date (`date`) is set to `05/01/2017` on the [invoice](/communications/dev-guide_rest_v2/reference/invoice/) and applies to all three line items.

```json
{ "cmpn": { "bscl": 0, "svcl": 0, "fclt": false, "frch": false, "reg": false }, "inv": [ { "doc": "TEST-VOIP INVOICE", "cmmt": false, "bill": { "cnty": "San Francisco", "ctry": "USA", "int": true, "geo": false, "city": "San Francisco", "st": "CA", "zip": "94102" }, "cust": 0, "lfln": false, "date": "2017-05-01T12:00:00Z", "itms": [ { "ref": "Line Item 001 - VoIP/Access Charge", "chg": 100, "line": 0, "sale": 1, "incl": false, "tran": 19, "serv": 6, "dbt": false, "adj": false }, { "ref": "Line Item 002 - VoIP/Lines", "chg": 0, "line": 10, "sale": 1, "incl": false, "tran": 19, "serv": 21, "dbt": false, "adj": false }, { "ref": "Line Item 003 - VoIP/Equip Rental", "chg": 25, "line": 0, "sale": 1, "incl": false, "tran": 19, "serv": 37, "dbt": false, "adj": false } ], "invm": true, "dtl": true, "summ": true, "opt": [ { "key": "1", "val": "VoIP Sample Line Items Invoice ABC-ZZZ" } ] } ]}
```

#### Response

Taxes (`txs` and `summ`) are returned as normal.

[View the Response JSON](#collapse1)

```json
{ "inv": [ { "doc": "TEST-VOIP INVOICE", "itms": [ { "ref": "Line Item 001 - VoIP/Access Charge", "txs": [ { "bill": true, "cmpl": true, "tm": 35.099999999999994, "calc": 1, "cat": "CONNECTIVITY CHARGES", "cid": 5, "name": "Universal Lifeline Telephone Service Charge (VoIP)", "exm": 64.9, "lns": 0, "min": 0, "pcd": 253500, "rate": 0.0475, "sur": true, "tax": 1.6672499999999997, "lvl": 1, "tid": 454 }, { "bill": true, "cmpl": true, "tm": 35.099999999999994, "calc": 1, "cat": "CONNECTIVITY CHARGES", "cid": 5, "name": "CA Teleconnect Fund (VoIP)", "exm": 64.9, "lns": 0, "min": 0, "pcd": 253500, "rate": 0.0108, "sur": true, "tax": 0.37908, "lvl": 1, "tid": 452 }, { "bill": true, "cmpl": true, "tm": 35.099999999999994, "calc": 1, "cat": "CONNECTIVITY CHARGES", "cid": 5, "name": "CA High Cost Fund A (VoIP)", "exm": 64.9, "lns": 0, "min": 0, "pcd": 253500, "rate": 0.0035, "sur": true, "tax": 0.12284999999999999, "lvl": 1, "tid": 450 }, { "bill": true, "cmpl": true, "tm": 35.099999999999994, "calc": 1, "cat": "CONNECTIVITY CHARGES", "cid": 5, "name": "TRS (VoIP)", "exm": 64.9, "lns": 0, "min": 0, "pcd": 253500, "rate": 0.005, "sur": true, "tax": 0.17549999999999996, "lvl": 1, "tid": 217 }, { "bill": true, "cmpl": true, "tm": 35.099999999999994, "calc": 1, "cat": "E-911 CHARGES", "cid": 7, "name": "E911 (VoIP)", "exm": 64.9, "lns": 0, "min": 0, "pcd": 253500, "rate": 0.0075, "sur": false, "tax": 0.26324999999999993, "lvl": 1, "tid": 161 }, { "bill": true, "cmpl": true, "tm": 64.9, "calc": 1, "cat": "CONNECTIVITY CHARGES", "cid": 5, "name": "FUSF (VoIP)", "exm": 35.099999999999994, "lns": 0, "min": 0, "pcd": 0, "rate": 0.174, "sur": false, "tax": 11.2926, "lvl": 0, "tid": 162 }, { "bill": true, "cmpl": true, "tm": 64.9, "calc": 1, "cat": "REGULATORY CHARGES", "cid": 6, "name": "FCC Regulatory Fee (VoIP)", "exm": 35.099999999999994, "lns": 0, "min": 0, "pcd": 0, "rate": 0.00302, "sur": false, "tax": 0.19599800000000003, "lvl": 0, "tid": 226 } ] }, { "ref": "Line Item 002 - VoIP/Lines", "txs": [ { "bill": true, "cmpl": true, "tm": 0, "calc": 4, "cat": "E-911 CHARGES", "cid": 7, "name": "San Francisco Access line Tax (VoIP)", "exm": 0, "lns": 10, "min": 0, "pcd": 377300, "rate": 3.27, "sur": false, "tax": 32.7, "lvl": 3, "tid": 250 } ] }, { "ref": "Line Item 003 - VoIP/Equip Rental", "txs": [ { "bill": true, "cmpl": true, "tm": 25, "calc": 1, "cat": "SALES AND USE TAXES", "cid": 1, "name": "District Tax", "exm": 0, "lns": 0, "min": 0, "pcd": 377200, "rate": 0.0125, "sur": false, "tax": 0.3125, "lvl": 2, "tid": 4 }, { "bill": true, "cmpl": true, "tm": 25, "calc": 1, "cat": "SALES AND USE TAXES", "cid": 1, "name": "Sales Tax", "exm": 0, "lns": 0, "min": 0, "pcd": 377300, "rate": 0.0125, "sur": false, "tax": 0.3125, "lvl": 2, "tid": 1 }, { "bill": true, "cmpl": true, "tm": 25, "calc": 1, "cat": "SALES AND USE TAXES", "cid": 1, "name": "Sales Tax", "exm": 0, "lns": 0, "min": 0, "pcd": 377300, "rate": 0.06, "sur": false, "tax": 1.5, "lvl": 1, "tid": 1 } ] } ], "summ": [ { "max": 2147483647, "min": 0, "tchg": 35.099999999999994, "calc": 1, "cat": "CONNECTIVITY CHARGES", "cid": 5, "name": "Universal Lifeline Telephone Service Charge (VoIP)", "exm": 64.9, "lns": 0, "pcd": 253500, "rate": 0.0475, "sur": true, "tax": 1.6672499999999997, "lvl": 1, "tid": 454 }, { "max": 2147483647, "min": 0, "tchg": 35.099999999999994, "calc": 1, "cat": "CONNECTIVITY CHARGES", "cid": 5, "name": "CA Teleconnect Fund (VoIP)", "exm": 64.9, "lns": 0, "pcd": 253500, "rate": 0.0108, "sur": true, "tax": 0.37908, "lvl": 1, "tid": 452 }, { "max": 2147483647, "min": 0, "tchg": 35.099999999999994, "calc": 1, "cat": "CONNECTIVITY CHARGES", "cid": 5, "name": "CA High Cost Fund A (VoIP)", "exm": 64.9, "lns": 0, "pcd": 253500, "rate": 0.0035, "sur": true, "tax": 0.12284999999999999, "lvl": 1, "tid": 450 }, { "max": 2147483647, "min": 0, "tchg": 35.099999999999994, "calc": 1, "cat": "CONNECTIVITY CHARGES", "cid": 5, "name": "TRS (VoIP)", "exm": 64.9, "lns": 0, "pcd": 253500, "rate": 0.005, "sur": true, "tax": 0.17549999999999996, "lvl": 1, "tid": 217 }, { "max": 2147483647, "min": 0, "tchg": 35.099999999999994, "calc": 1, "cat": "E-911 CHARGES", "cid": 7, "name": "E911 (VoIP)", "exm": 64.9, "lns": 0, "pcd": 253500, "rate": 0.0075, "sur": false, "tax": 0.26324999999999993, "lvl": 1, "tid": 161 }, { "max": 2147483647, "min": 0, "tchg": 64.9, "calc": 1, "cat": "CONNECTIVITY CHARGES", "cid": 5, "name": "FUSF (VoIP)", "exm": 35.099999999999994, "lns": 0, "pcd": 0, "rate": 0.174, "sur": false, "tax": 11.2926, "lvl": 0, "tid": 162 }, { "max": 2147483647, "min": 0, "tchg": 64.9, "calc": 1, "cat": "REGULATORY CHARGES", "cid": 6, "name": "FCC Regulatory Fee (VoIP)", "exm": 35.099999999999994, "lns": 0, "pcd": 0, "rate": 0.00302, "sur": false, "tax": 0.19599800000000003, "lvl": 0, "tid": 226 }, { "max": 2147483647, "min": 0, "tchg": 0, "calc": 4, "cat": "E-911 CHARGES", "cid": 7, "name": "San Francisco Access line Tax (VoIP)", "exm": 0, "lns": 10, "pcd": 377300, "rate": 3.27, "sur": false, "tax": 32.7, "lvl": 3, "tid": 250 }, { "max": 2147483647, "min": 0, "tchg": 25, "calc": 1, "cat": "SALES AND USE TAXES", "cid": 1, "name": "District Tax", "exm": 0, "lns": 0, "pcd": 377200, "rate": 0.0125, "sur": false, "tax": 0.3125, "lvl": 2, "tid": 4 }, { "max": 2147483647, "min": 0, "tchg": 25, "calc": 1, "cat": "SALES AND USE TAXES", "cid": 1, "name": "Sales Tax", "exm": 0, "lns": 0, "pcd": 377300, "rate": 0.0125, "sur": false, "tax": 0.3125, "lvl": 2, "tid": 1 }, { "max": 2147483647, "min": 0, "tchg": 25, "calc": 1, "cat": "SALES AND USE TAXES", "cid": 1, "name": "Sales Tax", "exm": 0, "lns": 0, "pcd": 377300, "rate": 0.06, "sur": false, "tax": 1.5, "lvl": 1, "tid": 1 } ] } ]}
```

### See Also

#### Input Objects

-   [`CalcTaxes` request](/communications/dev-guide_rest_v2/reference/calc-taxes-request/)
-   [Invoice](/communications/dev-guide_rest_v2/reference/invoice/)
-   [Line item](/communications/dev-guide_rest_v2/reference/line-item/)

#### Output Objects

-   [`CalcTaxes` response](/communications/dev-guide_rest_v2/reference/calc-taxes-response/)
-   [Detailed tax results](/communications/dev-guide_rest_v2/reference/detailed-tax-result/)
-   [Summarized tax results](/communications/dev-guide_rest_v2/reference/summarized-tax-result/)

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