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Clara's
vesting modelling
calculator

A calculator to help you visualise different vesting schedules.
Vesting terms
Enter in the details of your vesting terms.
Total number of options
Enter in the total number of options that your team member is receiving.
Need help figuring out how many options you should give your team?
Try out Clara's free ESOP Modelling Calculator.
Vesting start date
Enter in the date when the vesting caluclations will start. Unless there is a cliff, the first vesting period will either be 1, 3, or 12 months from this date depending on the vesting frequency you choose. If there is a cliff, the first vesting period will depend on how many months the cliff is.
Vesting duration (months)
Enter in the number of months the vesting schedule will run from the vesting start date. This is independent of any cliff period (see below).
Vesting frequency
Select the frequency of the vesting periods from the list below. This determines how many months will be between vesting periods.
Cliff Duration (months)
Enter in the number of months between the vesting start date and the first actual vesting period. Any number of options that would have vested before the cliff period will be added to the first actual vesting period. If there is no cliff period, enter '0' or leave this field blank.
Allocation type
This determines how rounded shares are distributed during the term of the schedule. Each option in the list shows how a total of 18 options would be split amongst 4 vesting periods based on the allocation type.
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Vesting schedule
Vesting Period
Date
Number of options vesting
Cumulative number of options vested
1
03 Apr 2026
250
250
2
03 May 2026
21
271
3
03 Jun 2026
21
292
4
03 Jul 2026
21
313
5
03 Aug 2026
21
334
6
03 Sep 2026
21
355
7
03 Oct 2026
20
375
8
03 Nov 2026
21
396
9
03 Dec 2026
21
417
10
03 Jan 2027
21
438
11
03 Feb 2027
21
459
12
03 Mar 2027
21
480
13
03 Apr 2027
20
500
14
03 May 2027
21
521
15
03 Jun 2027
21
542
16
03 Jul 2027
21
563
17
03 Aug 2027
21
584
18
03 Sep 2027
21
605
19
03 Oct 2027
20
625
20
03 Nov 2027
21
646
21
03 Dec 2027
21
667
22
03 Jan 2028
21
688
23
03 Feb 2028
21
709
24
03 Mar 2028
21
730
25
03 Apr 2028
20
750
26
03 May 2028
21
771
27
03 Jun 2028
21
792
28
03 Jul 2028
21
813
29
03 Aug 2028
21
834
30
03 Sep 2028
21
855
31
03 Oct 2028
20
875
32
03 Nov 2028
21
896
33
03 Dec 2028
21
917
34
03 Jan 2029
21
938
35
03 Feb 2029
21
959
36
03 Mar 2029
21
980
37
03 Apr 2029
20
1,000