How much gold does it cost to respec at level 90 in PoE2?

5,081 gold per passive point. Ten points cost 50,810 gold; one ascendancy point costs 25,405 gold (5× a passive point).

Does the respec cost depend on level?

Yes. The price of a point is set by your character level: 15 gold at level 1, 1,089 at level 50, 2,904 at level 80, 10,129 at level 100.

How much does an ascendancy respec cost?

Each ascendancy point costs 5 times a passive point at your level: 10,725 gold at level 70, 25,405 at level 90.

Respec Cost Calculator

Gold to refund passive and ascendancy points, by character level✓ Checked against game files · 0.5.5

Refunding a passive point costs gold set by your character level. At level 90 one point costs 5,081 gold, so 10 points cost 50,810. It is 15 gold at level 1, 1,089 at level 50, 2,904 at level 80 and 10,129 at level 100. An ascendancy point costs 5× as much (25,405 gold at level 90). Patch 0.5.5, from the game files.

Prices are the game's GoldRespecPrices table; the ascendancy multiplier is GameConstants AscendancyRespecCost (5). The biggest step is at level 100 (+587 gold a point). Plan the tree first in the passive tree planner to see how many points a change needs.

Gold per point at every level

Level	Per point	Ascendancy
1	15	75
2	19	95
3	25	125
4	31	155
5	39	195
6	46	230
7	60	300
8	73	365
9	85	425
10	98	490
11	113	565
12	128	640
13	145	725
14	163	815
15	182	910
16	211	1,055
17	225	1,125
18	241	1,205
19	257	1,285
20	273	1,365
21	290	1,450
22	308	1,540
23	326	1,630
24	344	1,720
25	364	1,820

Level	Per point	Ascendancy
26	384	1,920
27	404	2,020
28	425	2,125
29	447	2,235
30	470	2,350
31	493	2,465
32	517	2,585
33	542	2,710
34	567	2,835
35	593	2,965
36	620	3,100
37	648	3,240
38	676	3,380
39	706	3,530
40	736	3,680
41	767	3,835
42	799	3,995
43	832	4,160
44	866	4,330
45	900	4,500
46	936	4,680
47	973	4,865
48	1,010	5,050
49	1,049	5,245
50	1,089	5,445

Level	Per point	Ascendancy
51	1,130	5,650
52	1,172	5,860
53	1,215	6,075
54	1,259	6,295
55	1,304	6,520
56	1,351	6,755
57	1,399	6,995
58	1,448	7,240
59	1,498	7,490
60	1,550	7,750
61	1,603	8,015
62	1,657	8,285
63	1,713	8,565
64	1,770	8,850
65	1,829	9,145
66	1,889	9,445
67	1,950	9,750
68	2,014	10,070
69	2,078	10,390
70	2,145	10,725
71	2,213	11,065
72	2,282	11,410
73	2,354	11,770
74	2,427	12,135
75	2,502	12,510

Level	Per point	Ascendancy
76	2,578	12,890
77	2,657	13,285
78	2,737	13,685
79	2,820	14,100
80	2,904	14,520
81	3,089	15,445
82	3,281	16,405
83	3,480	17,400
84	3,686	18,430
85	3,899	19,495
86	4,120	20,600
87	4,349	21,745
88	4,585	22,925
89	4,829	24,145
90	5,081	25,405
91	5,509	27,545
92	5,952	29,760
93	6,412	32,060
94	6,889	34,445
95	7,383	36,915
96	7,895	39,475
97	8,425	42,125
98	8,974	44,870
99	9,542	47,710
100	10,129	50,645

Questions

How much gold does it cost to respec at level 90 in PoE2?: 5,081 gold per passive point. Ten points cost 50,810 gold; one ascendancy point costs 25,405 gold (5× a passive point).
Does the respec cost depend on level?: Yes. The price of a point is set by your character level: 15 gold at level 1, 1,089 at level 50, 2,904 at level 80, 10,129 at level 100.
How much does an ascendancy respec cost?: Each ascendancy point costs 5 times a passive point at your level: 10,725 gold at level 70, 25,405 at level 90.
And the atlas tree?: The game files also carry a constant AtlasPassiveRespecCost of 5,000; nothing in the files says how the atlas tree uses it, so it is not in the calculator.